ML16342D778
| ML16342D778 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 09/08/1997 |
| From: | Gwynn T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Rueger G PACIFIC GAS & ELECTRIC CO. |
| Shared Package | |
| ML16342D779 | List: |
| References | |
| 50-275-97-14, 50-323-97-14, EA-97-369, NUDOCS 9709110074 | |
| Download: ML16342D778 (14) | |
See also: IR 05000275/1997014
Text
CATEGORY 2
REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
I ACCESSION NBR:9709110074
DOC.DATE: 97/09/08
NOTARIZED: NO
'ACIL:50-275 Diablo Canyon Nuclear
Power Plant, Unit 1, Pacific
Ga
50-323 Diablo Canyon Nuclear
Power Plant, Unit 2, Pacific Ga
TH.NAME
AUTHOR AFFILIATION
YNNFT ~ PE
Region
4 (Post
820201)
RECIP.NAME
RECIPIENT AFFILIATION
RUEGERFG.M.
Pacific Gas
a Electric Co.
SUBJECT:
Forwards insp repts
50-275/97-14
& 50-323/97-14
on
970804-22.Two apparent violations identified
a being
considered for escalated
EA.Predecisional
enforcement
conference
scheduled for 970922.
DISTRIBUTION CODE:
ZEOZF
COPIES
RECEIVED:LTR
ENCL
I SIZE:
TITLE: General
(50 Dkt)-Insp Rept/Notice of Vio ation Response
NOTES:
I
DOCKET
05000275
05000323
RECIPIENT
ID CODE/NAME
PD4-2
INTERNAL: ACRS
~CEHRE
B
NRR/DRPM/PERB
OE DIR
RGN4
FILE
01
EXTERNAL: LITCO BRYCEFJ
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NRC PDR
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RECIPIENT
ID CODE/NAME
BLOOMFS
AEOD/SPD/RAB
DEDRO
NRR/DISP/PIPB
NRR/DRPM/PECB
NUDOCS-ABSTRACT
OGC/HDS3
NOAC
NUDOCS FULLTEXT
COPIES
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t.OADEO NQN
NRC FLOPPY
NOTE TO ALL "RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS
OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL
DESK
(DCD)
ON EXTENSION 41S-2083
TOTAL NUMBER OF COPIES
REQUIRED:
LTTR
20
ENCL
20
UNIT E D STATES
NUCLEAR REGULATORY COMMISSION
REGION IV
611 RYAN PLAZADRIVE, SUITE 400
ARLINGTON,TEXAS 76011 8064
SEP -8
1997
EA 97-369
Gregory M. Rueger, Senior Vice President
and General Manager
Nuclear Power Generation
Bus. Unit
Pacific Gas and Electric Company
Nuclear Power Generation, B14A
77 Beale Street, Room 1451
P.O. Box 770000
San Francisco, California 94177
SUBJECT:
NRC SPECIAL INSPECTION REPORT 50-275/97-14; 50-323/97-14
Dear Mr. Rueger:
An NRC special inspection was conducted August 4-22, 1997, at your Diablo Canyon
Nuclear Power Plant, Units
1 and 2, reactor facilities. The enclosed report presents the
scope and results of that inspection.
This inspection was conducted following
identification of issues involving the maintenance
of auxiliary saltwater pump vault drain
line check valves.
Based on the results of this inspection, two apparent violations were identified and are
being considered for escalated
enforcement action in accordance
with the "General
Statement of Policy and Procedure for NRC Enforcement Actions" (Enforcement Policy),
The first apparent violation involves the failure to meet the requirements of
10 CFR 50.65, "Requirements for Monitoring the Effectiveness of Maintenance at Nuclear
Power Plants," (Maintenance
Rule).
10 CFR 50.65 requires that the performance or
condition of structures, systems,
or components
(SSCs) be monitored against licensee
established
goals or that the licensee demonstrate
effective controls through preventive
maintenance
such that SSCs are capable of fulfillingtheir intended functions.
In particular,
the circumstances
at the Diablo Canyon facility involved numerous instances
in which your
staff failed to properly evaluate and take appropriate corrective actions after finding the
auxiliary saltwater pump vault drain line check valves were clogged with debris, a
condition that rendered the valves incapable of performipg their design function.
The
second apparent violation involves multiple examples of the failure to follow plant
procedures that require problems be documented
on an action request when they could
render SSCs unacceptable
or indeterminate if corrective action is not taken.
A Notice of
Violation is not presently being issued for these inspection findings.
In addition, please be
advised that the number and characterization
of the apparent violations described
in the
enclosed inspection report may change
as a result of further NRC review,
9709ii0074 970908
ADQCK 05000275
8
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIU
0
Pacific Gas and Electric Company
-2-
A predecisional enforcement conference to discuss these apparent violations has been
scheduled
for September
22, 1997.
The decision to hold a predecisional enforcement
conference
does not mean that the NRC has made
a final determination that a violation has
occurred or that enforcement action will be taken.
This conference
is being held to obtain
information to enable the NRC to make an enforcement decision, such as a common
understanding
of the facts, root causes,
missed opportunities to identify the apparent
violation sooner, corrective actions, significance of the issues,
and the need for lasting and
effective corrective action.
In particular, we expect you to address:
(1) why the failed
inspections were not properly documented
and evaluated
and what implications this'as
for other equipment within the scope of the Maintenance
Rule; and (2) during periods when
maintenance
was performed on the auxiliary saltwater pump vault drain check valves,
whether or not other safety-related
equipment was also removecf from service, and the
reportability of these events.
The NRC considers this to be a moderately risk significant event based on the event
duration and the potential common cause failure of the auxiliary saltwater systems for
Units
1 and 2. The NRC has reviewed the risk assessment
that was performed by your
staff and agrees with the overall conclusions.
In considering the operator mitigating
actions, we request that you address
in the predecisional enforcement conference the basis
for the specified flow rate of the backup fire water cooling system that supplies the
centrifugal charging pumps in the event that component cooling water is lost.
In addition, the conference
is an opportunity for you to point out any errors in our inspec-
tion report and for you to provide any information concerning your perspectives
on:
(1) the
severity of the violation, (2) the application of the factors that the NRC considers when it
determines the amount of a civil penalty that may be assessed
in accordance
with
Section VI.B.2 of the Enforcement Policy, and (3) any other application of the Enforcement
Policy to this case, including the exercise of discretion in accordance
with Section Vll.
This conference will be open to public observation.
You will be advised by separate
correspondence
of the results of our deliberations on this
matter.
No response
regarding these apparent violations is required at this time.
In accordance with 10 CFR 2.790 of the NRC's "Rules of Practice," a copy of this letter
and its enclosure will be placed in the NRC Public Document Room.
I Should you have any questions concerning"this Inspection, we will be pleased to discuss
them with you.
Since
y,
Thomas P. Gwynn
Dire
or
Division of Reacto
Proj cts
Pacific Gas and Electric Company
-3-
Docket Nos.:
50-275
50-323
License Nos.:
DPR-82
Enclosure:
NRC Inspection Report
50-275/97-1 4; 50-323/97-1 4
cc w/enclosure:
Dr. Richard Ferguson
Energy Chair
1100 lith Street, Suite 311
Sacramento,
California 95814
Ms. Nancy Culver
San Luis Obispo Mothers for Peace
P.O. Box 164
Pismo Beach, California 93448
Chairman
San Luis Obispo County Board of
Supervisors
Room 370
County Government Center
San Luis Obispo, California 93408
Mr. Truman BurnshMr. Robert Kinosian
California Public Utilities Commission
505 Van Ness, Rm. 4102
San Francisco, California 94102
Robert R. Wellington, Esq.
Legal Counsel
Diablo Canyon Independent
Safety Committee
857 Cess Street, Suite
D'onterey,
California 93940
Mr. Steve Hsu
Radiologic Health Branch
State Department of Health Services
P.O. Box 942732
Sacramento,
California 94234
IIII
Pacific Gas and Electric Company
Christopher J. Warner, Esq.
Pacific Gas and Electric Company
P.O. Box 7442
San Francisco, California 94120
Robert P. Powers, Vice President
and Plant Manager
Diablo Canyon Power Plant
P.O. Box 56
Avila Beach, California 93424
Managing Editor
Telegram-Tribune
1321 Johnson
Avenue
P.O. Box 112
San Luis Obispo, California 93406
Pacific Gas and Electric Company
-5-
SEP -8 l997
E-Mail report to T. Frye (TJF)
E-Mail report to T. Hiltz (TGH)
E-Mail report to NRR Event Tracking System (IPAS)
E-Mail report to Document Control Desk (DOCDESK)
E-Mail report to Richard Correia (RPC)
E-Mail report to Frank Talbot (FXT)
bcc to DCD (IE01)
bcc distrib. by RIV:
Regional Administrator
DRP Director
Branch Chief (DRP/E, WCFO)
Senior Project Inspector (DRP/E, WCFO)
Branch Chief (DRP/TSS)
WCFO File
W. L. Brown, RC
OE:EA File, (MS: 7-H5)
Resident Inspector
DRS-PSB
MIS System
RIV File
M. Hammond (PAO, WCFO)
G. F. Sanborn,
J. Lieberman, OE, (MS: 7-H5)
(I
DOCUMENT NAME: R:i DC'tDC714RP.MDT
To receive copy of document,
Indicate ln box: "C" = Copy without enclosures
"E" =
o
ith enclosures "N"= No copy
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9/2/97
9/
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9
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Pacific Gas and Electric Company
-5-
SEI - 8
I~~"7
E-Mail report to T. Frye (TJF)
E-Mail report to T. Hiltz (TGH)
E-Mail report to NRR Event Tracking System (IPAS)
E-Mail report to Document Control Desk (DOCDESK)
E-Mail report to Richard Correia (RPC)
E-Mail report to Frank Talbot (FXT)
"bcc to DCD (IE0,$
)"'cc
distrib. by RIV:
Regional Administrator
DRP Director
Branch Chief (DRP/E, WCFO)
Senior Project Inspector (DRP/E, WCFO)
Branch Chief (DRP/TSS)
WCFO File
W. L. Brown, RC
OE:EA File, (MS: 7-H5)
Resident Inspector
DRS-PSB
MIS System
RIV File
M. Hammond (PAO, WCFO)
G. F. Sanborn,
J. Lieberman, OE, (MS: 7-H5)
DOCUMENT NAMe: R:i DCi,DC71aRP.MDT
To receive copy of document, indicate in box: "C" = Copy without enciosures
"E" =
o
ith enciosures "N"= No copy
RIV:SRI:DRP/E
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9/2/97
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